References

↑Konami OCG Card Database: When the effect of "Bahamut Shark" resolves there are no Xyz Monsters in the Extra Deck that can be Special Summoned, how does the effect resolve?

↑Konami OCG Card Database: Can the Xyz Monster Special Summoned by the effect of "Bahamut Shark" attack during the turn it's Special Summoned?

↑Konami OCG Card Database: Is the Special Summon performed by the effect of "Bahamut Shark" considered to be an Xyz Summon? Also, after an Xyz Monster Special Summoned with the effect of "Bahamut Shark" is sent to the Graveyard, can it be Special Summoned with the effect of "Monster Reborn"?

↑Konami OCG Card Database: If "Bahamut Shark" activates its effect and "Enemy Controller" is activated in a Chain, switching control of the "Bahamut Shark" that activated its effect to the opponent, which player Special Summons an Xyz Monster from their Extra Deck?

↑Konami OCG Card Database: If the effect of a "Bahamut Shark" you control is activated, can you Special Summon a Rank 3 or lower WATER Xyz Monster to the opponent's side of the field?

↑Konami OCG Card Database: If the activation or the effect of "Bahamut Shark" is negated, can that "Bahamut Shark" attack during that turn?